| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a duct member which is lightweight, has sufficient rigidity, and is capable of properly controlling various physical properties such as permeability and thermal insulating properties required for a duct, and a duct composed of the same. <P>SOLUTION: The duct member is composed of a synthetic fiber 12 comprising a core part 12a formed by using fibers of a first resin as a material and a sheath part 12b which is formed by using a second resin with a melting point lower than that of the first resin as a material and covers the outer periphery of the core part 12a. It is composed so that a plurality of the sheath parts 12b, 12b form a large number of fixing parts 14 with each other. <P>COPYRIGHT: (C)2007,JPO&INPIT |
